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擺動式液壓缸

擺(bai)動(dong)(dong)式(shi)(shi)液(ye)壓缸是輸出扭矩(ju)并實現(xian)往(wang)復運(yun)動(dong)(dong)的(de)執行元件(jian)，有單葉(xie)片(pian)、雙(shuang)葉(xie)片(pian)、螺旋擺(bai)動(dong)(dong)等(deng)幾(ji)種(zhong)形式(shi)(shi)。葉(xie)片(pian)式(shi)(shi)式(shi)(shi)：定子(zi)塊固(gu)定在(zai)缸體上，而(er)(er)葉(xie)片(pian)和(he)轉(zhuan)子(zi)連接在(zai)一(yi)起。根(gen)據進油方向，葉(xie)片(pian)將帶(dai)動(dong)(dong)轉(zhuan)子(zi)作(zuo)往(wang)復擺(bai)動(dong)(dong)。螺旋擺(bai)動(dong)(dong)式(shi)(shi)又分單螺旋擺(bai)動(dong)(dong)和(he)雙(shuang)螺旋兩種(zhong)，現(xian)在(zai)雙(shuang)螺旋比較常用，靠兩個螺旋副降液(ye)壓缸內活(huo)塞(sai)的(de)直(zhi)線運(yun)動(dong)(dong)轉(zhuan)變為直(zhi)線運(yun)動(dong)(dong)與自轉(zhuan)運(yun)動(dong)(dong)的(de)復he運(yun)動(dong)(dong)，從而(er)(er)實現(xian)擺(bai)動(dong)(dong)運(yun)動(dong)(dong)。

叉車起升(sheng)缸活塞(sai)桿動作慢(man)、起升(sheng)時門架有間斷或沖擊

故障檢查1：系(xi)統油量不足

故障排除：加油(you)至油(you)標線(xian)

故障檢查2：密封不良、油(you)管連(lian)接不緊造成漏油(you)、油(you)管損(sun)壞

故障排除：加密封，擰(ning)緊管(guan)接(jie)頭，更換(huan)油(you)管(guan)

故(gu)障(zhang)檢(jian)查3：油(you)泵故(gu)障(zhang)致(zhi)供油(you)不足

故障排除：修理(li)或更換油泵

故障(zhang)檢(jian)查(cha)4：安全閥調整不(bu)當或損壞

故障排除：調整或修理安全(quan)閥

故障檢(jian)查5：液壓過濾器堵塞

故障排除(chu)：清洗或(huo)更換液(ye)壓油濾清器(qi)

故障檢查6：液(ye)壓系(xi)統中(zhong)有空氣

故障(zhang)排除：將空氣排除

單桿活(huo)塞液壓缸,由(you)于(yu)無桿腔(qiang)的有(you)效工(gong)作(zuo)面(mian)積(ji)大于(yu)有(you)桿腔(qiang)的有(you)效工(gong)作(zuo)面(mian)積(ji),故當(dang)缸兩腔(qiang)同時接通壓力油管時,活(huo)塞(或缸體)仍能移動(dong),這(zhe)種連(lian)接方式稱為差(cha)動(dong)連(lian)接.

差(cha)動連(lian)接時(shi),有效(xiao)工(gong)作(zuo)面(mian)積(ji)相當于活塞(sai)桿(gan)截面(mian)積(ji),適用與輕載快速場合.

伸縮式液壓缸

伸(shen)(shen)縮(suo)式(shi)液(ye)壓(ya)缸(gang)又叫多(duo)級缸(gang).它有單(dan)作(zuo)用和雙(shuang)作(zuo)用兩(liang)種(zhong)形式(shi).伸(shen)(shen)縮(suo)式(shi)液(ye)壓(ya)缸(gang)由兩(liang)個或(huo)多(duo)個活(huo)塞套裝(zhuang)而成(cheng),前級活(huo)塞缸(gang)的活(huo)塞是后級活(huo)塞缸(gang)的缸(gang)筒.這種(zhong)液(ye)壓(ya)缸(gang)在各級活(huo)塞依次伸(shen)(shen)出時可得到(dao)很大行程(cheng),但縮(suo)入后軸向(xiang)尺寸很小.